package com.euc.springbootframework.auth;

import com.euc.springbootframework.auth.manager.MyAccessDecisionManager;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.annotation.Bean;
import org.springframework.security.access.SecurityMetadataSource;
import org.springframework.security.access.intercept.AbstractSecurityInterceptor;
import org.springframework.security.access.intercept.InterceptorStatusToken;
import org.springframework.security.web.FilterInvocation;

import javax.servlet.*;
import java.io.IOException;

public class JwtUrlSecurityInterceptor extends AbstractSecurityInterceptor implements
        Filter {
    @Autowired
    public void  setMyAccessDecisionManager(){
        super.setAccessDecisionManager(myAccessDecisionManagerBean());
    }
    @Bean
    public MyAccessDecisionManager myAccessDecisionManagerBean(){
        return new MyAccessDecisionManager();
    }
    @Bean
    public MyInvocationSecurityMetadataSource myInvocationSecurityMetadataSourceBean(){
        return new MyInvocationSecurityMetadataSource();
    }
    @Override
    public void init(FilterConfig filterConfig) throws ServletException {
    }
    @Override
    public void doFilter(ServletRequest request, ServletResponse response, FilterChain chain) throws IOException, ServletException {
        FilterInvocation fi = new FilterInvocation(request, response, chain);
        invoke(fi);
    }
    @Override
    public void destroy() {
    }
    @Override
    public Class<?> getSecureObjectClass() {
        return FilterInvocation.class;
    }
    @Override
    public SecurityMetadataSource obtainSecurityMetadataSource() {
        return this.myInvocationSecurityMetadataSourceBean();
    }
    public void invoke(FilterInvocation fi) throws IOException, ServletException {
        InterceptorStatusToken token = super.beforeInvocation(fi);
        try {
            fi.getChain().doFilter(fi.getRequest(), fi.getResponse());
        }finally {
            super.afterInvocation(token, null);
        }
    }
}